The Category:Pages using catfix page on the English Wiktionary has been viewed over 6.6 million times over the past month. According to pageviews.wmcloud.org, it was viewed 742,444 times on October 30, making up 14.5% of page views across the entire site on that day. This is a maintenance category and is of no interest to anyone (I am the creator of the category).

I hope this isn't a result of the WMF being DDOSed or something like that—but I would be very interested to know what's going on so that we can get accurate numbers for which pages are actually attracting the most readers.